HttpClient发送Post请求（一）

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pom

<dependency>    <groupId>org.apache.httpcomponents</groupId>    <artifactId>httpclient</artifactId>    <version>4.5.3</version></dependency>

code

package com.xxxxxx.xxxxx; import java.io.IOException;import java.nio.charset.Charset;import org.apache.http.HttpEntity;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.methods.CloseableHttpResponse;import org.apache.http.client.methods.HttpPost;import org.apache.http.entity.StringEntity;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;import org.apache.http.util.EntityUtils;/**  * @author wushucheng * @version 创建时间：2017年6月28日 下午5:20:23  * @TODO 类说明  */public class HttpUtil {    public static String post(String url, String body){        String result = null;        CloseableHttpClient client = null;        CloseableHttpResponse response = null;        try {                client = HttpClients.createDefault();                HttpPost httpPost = new HttpPost(url);                StringEntity stringEntity = new StringEntity(body, Charset.forName("UTF-8"));                httpPost.setEntity(stringEntity);                response = client.execute(httpPost);                HttpEntity entity = response.getEntity();                result = EntityUtils.toString(entity);        } catch (ClientProtocolException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        } finally{            if(response != null){                try {                    response.close();                } catch (IOException e) {                    e.printStackTrace();                }            }            if(client != null){                try {                    client.close();                } catch (IOException e) {                    e.printStackTrace();                }            }    }    return result;    }}

attention

以上代码可以发送 http/https post 请求

调用微信API的时候，若body存在中文，一定要进行 UTF-8 转码，否则会报错

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